Composition and Function of Lymph in Humans

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What is Lymph?

Lymph, a colorless fluid that flows throughout the lymphatic system, is a fluid that is found in the lymphatic system. The lymphatic system’s primary function is to act as a filter for microorganisms, organic wastes, poisons, and other debris. It transports lymphocytes throughout the body to combat infections.

Extracellular fluid (fluid outside the cell) in animals and humans is separated into the interstitial fluid (fluid between tissues) and plasma. It is made up of tiny water-soluble molecules that move between tissue cells. Because of the continual interchange of little solutes, water, and ions through the capillary walls of the tissues, plasma and interstitium are comparable.

The functions of interstitial fluid are as follows:

  • It is used to transport nutrients to the cells.
  • It enables intercellular communication between the cells.
  • It removes the metabolic wastes from the cells.

The lymphatic system collects the interstitial fluid and drains the rest. The drained fluid returns to the blood arteries, while the remaining fluid is collected by lymph capillaries, also known as lymphatic capillaries.

Let us have an overview of the composition and function of lymph in humans.

Composition of Lymph

Lymph plasma, lymph corpuscles, and lymphoid organs make up the lymphatic system. The following describes the makeup of lymph:

Lymph Plasma

The interstitial fluid is lymph. It has the same mineral content as plasma. It has less calcium, fewer blood proteins, less phosphorus, and a higher quantity of glucose. Lymph plasma contains globin proteins, which are antibodies. Organic and inorganic compounds are examples of other substances. The lymph facilitates the exchange of nutrients and gases between the blood and the cells of tissues.

Lymph Corpuscles

Leucocytes and amoeboid cells are among them. It comprises lymphocytes that are specialized in inducing immunological responses in the human body.

Lymphoid Organs

The lymphatic system is made up of several lymph nodes located deep within the body. These lymph nodes are linked to lymphatic veins that transport lymph throughout the body. At the lymph nodes, the lymph is filtered.

The lymphatic system includes the spleen, tonsils, adenoids, and thymus. The spleen is the largest lymphatic organ in the body, positioned behind the ribcage, above the stomach, and precisely in the left upper quadrant of the abdomen. Tonsils, adenoids, and the thymus gland are also found on either side of the throat and neck.

Other Components of Lymph in Humans

  • Carbohydrates
  • Lymphocytes
  • Creatinine
  • Water – 94%
  • Urea
  • Chlorides
  • Enzymes
  • Proteins – Albumin, globulin, and fibrinogen
  • Non-protein nitrogenous substances.

Function of Lymph

Lymph serves a variety of roles. The following are some of the key roles of lymph:

  • It keeps the body’s cells hydrated.
  • It distributes oxygen, hormones, and nutrients throughout the body and eliminates metabolic waste from the cells.
  • It carries antibodies and lymphocytes to the bloodstream.
  • Keeping the composition of tissue fluid and the amount of blood constant.
  • Fats are absorbed from the small intestine via lymphatic capillaries.
  • Prevents bacteria and foreign things from invading the lymph nodes.

Watch the video below to discover more about human blood and lymph composition, as well as crucial questions and explanations on the subject.

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Frequently Asked Questions

What are the 3 lymphatic organs?

Lymphatic organs include the spleen, thymus and tonsils.

How do you know if your lymphatic system is blocked?

Symptoms of a blocked lymphatic system include swelling, fatigue, bloating, depression and excess weight gain.

What is the function of the lymphatic system?

The function of the lymphatic system is to carry lymph throughout the body that contains infection-fighting white blood cells.

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